JPS6114825B2 - - Google Patents
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- Publication number
- JPS6114825B2 JPS6114825B2 JP53142489A JP14248978A JPS6114825B2 JP S6114825 B2 JPS6114825 B2 JP S6114825B2 JP 53142489 A JP53142489 A JP 53142489A JP 14248978 A JP14248978 A JP 14248978A JP S6114825 B2 JPS6114825 B2 JP S6114825B2
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- fiber
- support material
- fluid
- porous support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000835 fiber Substances 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 43
- 239000012530 fluid Substances 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 229920000297 Rayon Polymers 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 239000002964 rayon Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000036314 physical performance Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- QKSIFUGZHOUETI-UHFFFAOYSA-N copper;azane Chemical compound N.N.N.N.[Cu+2] QKSIFUGZHOUETI-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Description
本発明は、繊維ウエブが繊維間交絡により布状
に安定化されており、極めて柔軟性、通気性、吸
液スポツト性に富み、尚且つ、優れた強力を有す
る衛生材料及びその製造方法に関するものであ
る。
近年、不織布の技術開発はめざましく、広い範
囲の繊維素材について開発が進められており、
種々の製品が市場に提供されている。これらの不
織布及び製造技術は、それぞれ優れた特性を有し
ており、例えば、紡糸シート形成直結によるスパ
ンボンド製品は、その高生産性、高強度等から、
工業資材、インテリア材料等に好評を博してお
り、一方、レーヨン短繊維、バルブ等から作られ
る乾式あるいは湿式不織布は、芯地等の衣料分
野、衛生材料、ワイピング材料等に広い需要を見
い出している。
本発明者等は、このような状況の中で、特に、
衛生材料に好適な、強度と風合いとに優れに特性
を有する布状材料およびその製造方法を提供しよ
うとするものである。
本来、衛生材料として、特に、生理用ナプキ
ン、おしめ等の外装材として用いるためには、次
のような性能を有することが望ましい。
１ 通気性、吸液スポツト性に富みソフトである
こと。
２ 強力に優れており、特に湿潤時において強力
低下が少ないこと。
３ 接着剤等の人体に有害なものを含有しないこ
と。
４ 低コストで製造可能なこと。
然るに、現在までのところ、これらの要求をす
べて満足するような衛生材料は開発されていな
い。例えば、湿式によるものは高生産性から、低
コストではあるが、ペーパーライクなものとな
り、ソフト感にかけ、湿潤時での強力低下が著し
い。又、乾式によるものは、湿潤時の強力低下は
少ないが、接着剤を使用しており、衛生的でな
い。又、湿式に比べソフトであるが、まだ接着剤
によつて阻害されているため、十分ではなかつ
た。
本発明者等は、これらの問題点を解消すべく鋭
意検討した結果、疎水性繊維15〜100％の繊維ウ
エブを硬度50゜以上の無孔支持材上に導き、その
支持材上で噴射圧力７Kg/cm2以上の高圧流体を巾
方向平均流体供給量が40c.c./Sec.cm以下の状態で
繊維ウエブに衝突させ、布状に安定化することに
より極めて柔軟性、通気性、吸液スポツト性に富
み、尚且つ、優れた湿潤強力を有する布状材料を
効率良く製造出来ることを見出し、本発明に到達
したものである。
本発明を更に詳しく説明すると、本発明に云う
高圧流体とは、噴射圧力７Kg/cm2以上で、小さな
オリフイスから射出される微細な流体、或は、ス
プレーノズルから粒子状で飛散される噴霧状流等
であり、これらを単独で用いても、或は、組み合
せた状態で用いても良い。要は、高圧流体を効率
良く射出できるノズルであれば、いかなるもので
あつても良いが、本発明に云う優れた物理性能を
有する衛生材料を得るには、噴射圧力７Kg/cm2未
満では、いかに長時間処理を行なつても、又、ノ
ズルを繊維ウエブに接触する程近づけようと達成
することは出来ない。又、用いるノズル口の形態
は、被処理繊維ウエブとの相対速度、噴射圧力被
処理繊維ウエブを構成している繊維繊度、繊維長
等を考慮して決定されるものであるが、微細な流
体を用いる場合は、その径は0.005〜0.02cmの範
囲が望ましく、噴霧状流を用いる場合は、噴射角
度45゜以下の扁平噴霧状流を射出する楕円形状を
持つたものが望ましいが、これは本発明を特に限
定するものではない。
本発明は、第１図、第２図に示す如く、上記高
圧流体１を無孔支持材２上の繊維ウエブ３に射
出、衝突させて繊維間交絡をさせるものである
が、本発明の意図する効果果を十分発揮させるた
めには、硬度50゜以上の無孔支持材２上に繊維ウ
エブ３を導き、巾方向平均供給量40c.c./Sec.cm以
下で処理することが必要である。このようにする
ことによつて第１図、第２図から明らかの如く、
流体の作用方向は、一方向ではなく、繊維ウエブ
３上方から射出された流体１は繊維ウエブ３表面
で交絡を進める一方、繊維ウエブ３を通過した流
体４が無孔支持材２上で反射され繊維ウエブ３の
無孔支持材２接触面からも交絡が進むため、密
度、交絡度を効率よく向上させ、優れた物理性能
の不織布を流体エネルギーの損失を最小の状態で
得ることが出来るのである。尚図中５は排水流を
示す。本発明に云う無孔支持体２とは、第１図、
第３図に示すローラー状のもの、第２図に示す板
状のものの他、第４図ベルトに示す等であつても
良いが、その表面の硬度は、JIS−K6301で云う
50゜以上であることが必要であり、この条件を満
すものであれば、その素材は金属、ゴム、プラス
チツク等のいずれでも良い。又、無孔支持材２の
表面は、平坦或は開孔を意図する場合は、凹凸形
状をもつものであつても良い。
硬度50゜未満の素材による無孔支持材２を用い
た場合、繊維ウエブ処理時の挙動は明らかではな
く、無孔支持材表面の歪による流体エネルギーの
吸収等と推側する域であるが、この条件下では、
本発明の意図する効果を発揮出来ない。
又、本発明に云う巾方向平均流体供給量とは、
例えば、第３図、第４図に示す如く処理シート繊
維ウエブ３の進行方向に対して無孔支持材２を直
角に設置し、その上方にノズル６をすえつけて処
理を行なう場合、１つの無孔支持材２上に射出さ
れる総流量をそのノズル６の有効巾で割つたもの
であり、即ち第３図に示す場合の巾方向平均流体
供給量（c.c./SEC.cm）＝Ｆ（ノズル流量）／Ｌ（ノズ
ル有効巾）、第４図
に示す場合の巾方向平均流体供給量（c.c./SEC.
cm）＝
Ｆ１（ノズル流量）＋Ｆ２（第２ノズル流量）＋………
／Ｌ（ノズル有効巾）と
なる。そして無孔支持材２を使用し繊維ウエブ３
を処理安定性良く行なうためには、巾方向平均供
給量に上限があり、40c.c./Sec.cm以上にした場合
サクシヨンによる流体の排除等を行なつても、処
理時の繊維ウエブ３は多量の流体の中で浸された
状態で高圧流体１の処理を受けるため、洪水状態
にある流体の抵抗によつてその衝突力を極小にさ
れ、本発明に云う処理安定性及び優れた物理性能
を得ることは出来ない。
本発明に云う疎水性繊維とは、ナイロン、ポリ
エスチル、ポリプロピレン、ポリエチレン、ポリ
ウレタン、アクリル等であり、これら単独でも、
或は、混合したものでも良い。又、親水性繊維と
は、ビスコースレーヨン、銅アンモニアレーヨン
アセテート、木綿、絹、麻、木材パルプ等であ
り、これらの単独、或は混合のものでも良い。要
は、疎水性繊維15〜100℃と親水性繊維85〜０％
の構成によつて、本発明に云う通気性、吸液スポ
ツト性、又、包装体として用いた場合の液体通過
後も、すばやく乾いた状態となる特性を付加され
るものであり、疎水性繊維15％未満、親水性繊維
85％以上の構成では、吸液スポツト性が悪く、
又、液体通過後も包装体に多量含有し、使用感を
損うものとなる。
出発材料としての繊維ウエブ３の形成法として
は、上記の構成を得ることが出来るものであれ
ば、在来のカード、抄紙機によつてなされる短繊
維ウエブでも、或は、紡糸トウ、フイラメントを
開繊した長繊維ウエブ等のいずれの方法を用いて
も良い。
又、用いられる繊維形態、即ち、繊度、クリン
プ状態等は、いずれのものでも良いが、本発明を
効果的に発揮するためには、繊維繊度は、細い程
望ましい。然しながら例えば、表層に細い繊維、
下層に太い繊維を用い、表面の平滑性、多層によ
る嵩高を狙うことも可能である。
本発明に云う流体は、望ましくは水である。
又、この流体は必要に応じ粘剤、糊等を溶存して
も良く、更に可及的細粒を含んでも良い。
かくして得られた材料は、無孔のもの、或は、
無孔支持体の凹凸に応じた開孔を持ち、疎水性繊
維／親水性繊維が15／85〜100／０％の構成から
なり、繊維間が高圧流体の衝突力によつて三次元
に交絡し、布状に安定化しているため、極めて、
柔軟性、通気性、吸液スポツト性に富み、尚且
つ、高強力を有し、ノーバインダーであることか
ら、製造工程、製品における公害の懸念もなく、
衛生材料として優れた適性をもつものである。以
下、実施例によつて更に詳しく説明する。
実施例 １
本実施例は、繊維間交絡、繊維表面摩擦抵抗に
よる衛生材料の製造方法を示し、使用する無孔支
持材、噴射圧力、巾方向平均流体供給量が、本発
明において、極めて重要であることを示すもので
ある。原料繊維ウエブは、繊維繊度1.4d、繊維長
51mmのポリエステル繊維40％と繊維繊度1.5d、繊
維長51mmのレーヨン繊維60％によつて構成されて
おり、これらの繊維を混紡したランダムウエブ
で、その目付は約50ｇ/m2であつた。
用いるノズルは、径が130μの微細な流体を射
出するものであり、又、無孔支持材２は、第３図
に示すようなローラー状無孔支持材を用い、所定
の表面硬度の支持材、所定の噴射圧力、巾方向平
均流体供給量で、上記の繊維ウエブを高圧流体処
理して得たものの結果が表１である。この結果か
らも、明らかな如く、本発明が意図する効果を十
分発揮するためには、表面硬度（JIS−K6301）
50゜以上の無孔支持材を用い、噴射圧力７Kg/cm2
以上、巾方向平均流体供給量40c.c./Sec.cm以下の
条件下で、処理することが重要である。
実施例 ２
本実施例は、本発明に云う衛生材料の製造にお
いて、用いる繊維ウエブの構成が重要であること
を示すものである。
原料繊維ウエブは、繊維繊度1.5d、繊維長51mm
のレーヨン繊維と、繊維繊度2d、繊維長51mmの
ポリプロピレン繊維を任意の割合で混紡し、目付
約25ｇ/m2のパラレルウエブとした。
用いたノズルは、径100μの微細な流体を射出
するものであり、又、無孔支持材２は、第３図に
示すようなローラー状支持材を用い、その表面硬
度100゜のステンレスであつた。
このような無孔支持材の上に繊維ウエブを導
き、噴射圧力30Kg/cm2、巾方向平均流体供給量7.2
c.c./Sec.cmの条件で処理し、繊維間の交絡により
安定化された材料を得た。（表２）
この結果からも、明らかな如く、本発明に云う
吸液スポツト性等を得るためには、疎水性繊維15
〜100％、親水性繊維85〜０％の構成が重要であ
る。
ここに云う吸液スポツト性とは、本発明の製法
で得たものを10枚重ね合せた瀘紙の上におき、表
面からビレツトにより５〜10ml/minの割合で水
を10ml供給し、１分放置した後、包装体での水広
がり面積及びそれに含む水重量を測定した。
The present invention relates to a sanitary material in which a fiber web is stabilized in a cloth-like manner by intertwining the fibers, and has excellent flexibility, breathability, and liquid-absorbing spot properties, as well as excellent strength, and a method for producing the same. It is. In recent years, the technological development of nonwoven fabrics has been remarkable, and development is progressing for a wide range of fiber materials.
Various products are offered on the market. Each of these nonwoven fabrics and manufacturing technologies has excellent characteristics. For example, spunbond products that are directly connected to the formation of spun sheets are highly productive, have high strength, etc.
It has been well received for industrial materials, interior materials, etc. On the other hand, dry or wet nonwoven fabrics made from short rayon fibers, valves, etc. have found wide demand in the clothing field such as interlining, sanitary materials, wiping materials, etc. There is. Under such circumstances, the present inventors, in particular,
The object of the present invention is to provide a cloth-like material that is suitable for sanitary materials and has excellent properties in terms of strength and texture, and a method for producing the same. Essentially, in order to use it as a sanitary material, particularly as an exterior material for sanitary napkins, diapers, etc., it is desirable to have the following properties. 1. Must be soft with good breathability, liquid absorption and spotting properties. 2. Excellent strength, with little loss of strength, especially when wet. 3.Do not contain anything harmful to the human body, such as adhesives. 4. Can be manufactured at low cost. However, to date, no sanitary material has been developed that satisfies all of these requirements. For example, the wet method has high productivity and low cost, but it becomes paper-like, has a soft feel, and has a significant decrease in strength when wet. In addition, dry methods have less strength loss when wet, but they use adhesives and are not sanitary. Also, although it was softer than the wet method, it was still inhibited by the adhesive, so it was not sufficient. As a result of intensive studies to solve these problems, the present inventors guided a fiber web containing 15 to 100% hydrophobic fibers onto a non-porous support material with a hardness of 50° or more, and applied jet pressure onto the support material. A high-pressure fluid of 7Kg/cm2 or more is impinged on the fiber web with an average fluid supply amount of 40c.c./Sec.cm or less in the width direction, and by stabilizing it into a cloth-like shape, it becomes extremely flexible, breathable, and absorbent. The present invention was achieved by discovering that it is possible to efficiently produce a cloth-like material that is rich in liquid spotting properties and has excellent wet strength. To explain the present invention in more detail, the high-pressure fluid referred to in the present invention is a fine fluid that is injected from a small orifice at an injection pressure of 7 kg/cm 2 or more, or a spray-like fluid that is dispersed in the form of particles from a spray nozzle. These may be used alone or in combination. In short, any nozzle may be used as long as it can efficiently inject high-pressure fluid, but in order to obtain the sanitary material with the excellent physical performance of the present invention, an injection pressure of less than 7 kg/cm 2 is required. No matter how long the process is carried out, it cannot be achieved no matter how close the nozzle is to contacting the fibrous web. The shape of the nozzle opening to be used is determined by taking into consideration the relative velocity with respect to the fibrous web to be treated, the injection pressure, the fineness of the fibers constituting the fibrous web to be treated, the fiber length, etc. When using a spray, the diameter is preferably in the range of 0.005 to 0.02 cm. When using a spray, it is desirable to have an elliptical shape that emits a flat spray with an injection angle of 45° or less. This invention is not particularly limited. As shown in FIGS. 1 and 2, the present invention injects the high-pressure fluid 1 into the fiber web 3 on the non-porous support material 2 and causes the fibers to become entangled. In order to fully exhibit the effects of this process, it is necessary to guide the fiber web 3 onto a non-porous support material 2 with a hardness of 50° or more, and to process it at an average feed rate in the width direction of 40c.c./Sec.cm or less. be. By doing this, as is clear from Figures 1 and 2,
The acting direction of the fluid is not unidirectional; the fluid 1 ejected from above the fiber web 3 is entangled on the surface of the fiber web 3, while the fluid 4 that has passed through the fiber web 3 is reflected on the non-porous support material 2. Since the fibrous web 3 is entangled from the contact surface with the nonporous support material 2, the density and degree of entanglement can be efficiently improved, and a nonwoven fabric with excellent physical performance can be obtained with minimal loss of fluid energy. . Note that 5 in the figure indicates the drainage flow. The non-porous support 2 referred to in the present invention is shown in FIG.
In addition to the roller-shaped type shown in Figure 3, the plate-shaped type shown in Figure 2, and the belt type shown in Figure 4, the surface hardness shall be as specified in JIS-K6301.
The angle must be 50° or more, and the material may be metal, rubber, plastic, etc. as long as it satisfies this condition. Further, the surface of the non-porous support material 2 may be flat, or may have an uneven shape if holes are intended. When using a non-porous support material 2 made of a material with a hardness of less than 50°, the behavior during processing of the fiber web is not clear, and it is likely that fluid energy is absorbed due to strain on the surface of the non-porous support material. Under this condition,
The intended effect of the present invention cannot be achieved. Moreover, the widthwise average fluid supply amount referred to in the present invention is:
For example, when the non-porous support material 2 is installed perpendicularly to the traveling direction of the treated sheet fiber web 3 as shown in FIGS. 3 and 4, and the nozzle 6 is installed above it for treatment, one The total flow rate injected onto the non-porous support material 2 is divided by the effective width of the nozzle 6, that is, the widthwise average fluid supply amount (cc/SEC.cm) = F( Nozzle flow rate)/L (nozzle effective width), average fluid supply amount in the width direction (cc/SEC.
cm) =
F 1 (nozzle flow rate) + F 2 (second nozzle flow rate) +……
/L (nozzle effective width). Then, using the non-porous support material 2, the fibrous web 3
In order to perform processing with good stability, there is an upper limit to the average supply amount in the width direction. Since it is treated with the high-pressure fluid 1 while immersed in a large amount of fluid, the collision force is minimized by the resistance of the fluid in the flooded state, resulting in the process stability and excellent physics referred to in the present invention. Performance cannot be obtained. The hydrophobic fibers referred to in the present invention include nylon, polyester, polypropylene, polyethylene, polyurethane, acrylic, etc.
Alternatively, a mixture may be used. Further, the hydrophilic fibers include viscose rayon, copper ammonia rayon acetate, cotton, silk, linen, wood pulp, etc., and these fibers may be used alone or in combination. In short, hydrophobic fiber 15-100℃ and hydrophilic fiber 85-0%
Due to the structure of the hydrophobic fiber, it has the characteristics of air permeability, liquid absorption spot property, and drying quickly even after liquid passes through when used as a packaging body. Less than 15%, hydrophilic fiber
With a composition of 85% or more, liquid absorption and spotting properties are poor.
Moreover, even after the liquid has passed through, a large amount of it remains in the package, impairing the usability. The fibrous web 3 as a starting material can be formed by a short fiber web made by a conventional card or paper machine, or by a spun tow or filament, as long as the above structure can be obtained. Any method such as opening a long fiber web may be used. Further, the fiber form used, that is, the fineness, crimp state, etc., may be of any type, but in order to effectively exert the present invention, it is desirable that the fiber fineness is as fine as possible. However, for example, thin fibers on the surface layer,
It is also possible to use thick fibers in the lower layer to achieve a smooth surface and bulk due to multiple layers. The fluid referred to in the present invention is preferably water.
Further, this fluid may dissolve a sticky agent, a glue, etc. as necessary, and may further contain fine particles as much as possible. The material thus obtained is non-porous or
It has pores that correspond to the irregularities of the non-porous support, and is composed of 15/85 to 100/0% hydrophobic fiber/hydrophilic fiber, and the fibers are three-dimensionally entangled by the collision force of high-pressure fluid. And because it is stabilized like a cloth, it is extremely
It has excellent flexibility, breathability, liquid absorption and spotting properties, and has high strength.As it is binder-free, there is no concern about pollution in the manufacturing process or product.
It has excellent suitability as a sanitary material. The present invention will be explained in more detail below using examples. Example 1 This example shows a method for manufacturing sanitary materials using fiber-to-fiber entanglement and fiber surface friction resistance. It shows that something is true. The raw fiber web has a fiber fineness of 1.4d and a fiber length.
It was composed of 40% polyester fibers of 51 mm and 60% rayon fibers with a fiber fineness of 1.5 d and a fiber length of 51 mm. It was a random web made by blending these fibers, and its basis weight was approximately 50 g/m 2 . The nozzle used is one that injects a fine fluid with a diameter of 130μ, and the non-porous support material 2 is a roller-shaped non-porous support material as shown in Fig. 3, and the support material has a predetermined surface hardness. Table 1 shows the results obtained by subjecting the above fibrous web to high-pressure fluid treatment at a predetermined injection pressure and an average fluid supply amount in the width direction. As is clear from this result, in order to fully exhibit the intended effects of the present invention, the surface hardness (JIS-K6301)
Using non-porous support material of 50° or more, injection pressure 7Kg/cm 2
As mentioned above, it is important to perform the treatment under conditions where the average fluid supply amount in the width direction is 40c.c./Sec.cm or less. Example 2 This example shows that the structure of the fibrous web used is important in the production of the sanitary material referred to in the present invention. The raw fiber web has a fiber fineness of 1.5d and a fiber length of 51mm.
A parallel web with a fabric weight of approximately 25 g/m 2 was prepared by blending rayon fibers with polypropylene fibers with a fiber fineness of 2 d and a fiber length of 51 mm in an arbitrary ratio. The nozzle used was one that injected a fine fluid with a diameter of 100μ, and the non-porous support material 2 was a roller-shaped support material as shown in Fig. 3, and was made of stainless steel with a surface hardness of 100°. Ta. The fibrous web was guided onto such a non-porous support material, and the injection pressure was 30 Kg/cm 2 and the average fluid supply amount in the width direction was 7.2.
The material was processed under the conditions of cc/Sec.cm to obtain a material stabilized by the entanglement between the fibers. (Table 2) As is clear from these results, in order to obtain the liquid absorption spot properties of the present invention, the hydrophobic fiber 15
~100% and 85~0% hydrophilic fibers are important. The liquid absorption spot property referred to here means that the product obtained by the production method of the present invention is placed on top of 10 sheets of filter paper, and 10 ml of water is supplied from the surface at a rate of 5 to 10 ml/min by a billet. After allowing the package to stand for several minutes, the area of water spreading in the package and the weight of water contained therein were measured.
【表】【table】
第１図、第２図は、本発明を実施するための装
置例の側面図で、流体の流れを示すものである。
第３図、第４図は、本発明を実施する装置例の斜
視図である。
１……噴射流体、２……無孔支持材、３……繊
維ウエブ、４……反射流体、５……排水流、６…
…ノズル。
1 and 2 are side views of an exemplary apparatus for carrying out the present invention, showing fluid flow.
3 and 4 are perspective views of an example of an apparatus for carrying out the present invention. DESCRIPTION OF SYMBOLS 1... Injection fluid, 2... Non-porous support material, 3... Fibrous web, 4... Reflection fluid, 5... Drainage flow, 6...
…nozzle.
Claims (1)
の繊維ウエブが高圧流体処理下の繊維間の交絡に
より布状に安定化されていることを特徴とする衛
生材料。 ２ 疎水性繊維15〜100％と親水性繊維85〜０％
の繊維ウエブを硬度50゜以上の無孔支持材上に導
き、その支持材上において、噴射圧力７Kg/cm2以
上の高圧流体を、巾方向平均流体供給量40c.c./Se
ｃ．cm以下の状態で、その繊維ウエブに衝突させる
ことにより、その繊維ウエブを布状に安定化させ
ることを特徴とする衛生材料の製造方法。[Claims] 1. 15-100% hydrophobic fibers and 85-0% hydrophilic fibers.
A sanitary material characterized in that the fibrous web is stabilized in a cloth-like manner by interlacing the fibers under high-pressure fluid treatment. 2 15-100% hydrophobic fibers and 85-0% hydrophilic fibers
of fiber web is guided onto a non-porous support material with a hardness of 50° or more, and on the support material, high-pressure fluid with an injection pressure of 7Kg/cm 2 or more is applied at an average fluid supply rate of 40c.c./Se in the width direction.
c. A method for producing a sanitary material, characterized by stabilizing the fiber web into a cloth-like shape by colliding with the fiber web in a state of less than cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14248978A JPS5568367A (en) | 1978-11-19 | 1978-11-19 | Sanitary material and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14248978A JPS5568367A (en) | 1978-11-19 | 1978-11-19 | Sanitary material and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5568367A JPS5568367A (en) | 1980-05-23 |
| JPS6114825B2 true JPS6114825B2 (en) | 1986-04-21 |
Family
ID=15316505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14248978A Granted JPS5568367A (en) | 1978-11-19 | 1978-11-19 | Sanitary material and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5568367A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1247303A (en) * | 1984-05-21 | 1988-12-28 | Frederich O. Lassen | Labial sanitary pad |
| JPS61127728U (en) * | 1985-01-30 | 1986-08-11 | ||
| IT1182491B (en) * | 1985-07-04 | 1987-10-05 | Faricerca Spa | COATING STRUCTURE FOR ABSORBENT SANITARY AND SANITARY PRODUCTS AND ABSORBENT PRODUCT PROVIDED WITH SUCH COATING |
| JPH0614946B2 (en) * | 1986-01-20 | 1994-03-02 | ユニ・チヤ−ム株式会社 | Absorbent article surface material and method for producing the same |
| GB8722004D0 (en) * | 1987-09-18 | 1987-10-28 | Hercules Inc | Absorbent material & thermally bonded cores |
| US5009651A (en) * | 1988-09-06 | 1991-04-23 | Kao Corporation | Surface material for sanitary articles and its preparing method |
| JP3400702B2 (en) * | 1997-12-26 | 2003-04-28 | ユニ・チャーム株式会社 | Nonwoven fabric manufacturing method |
| JP5080049B2 (en) * | 2006-09-22 | 2012-11-21 | ユニ・チャーム株式会社 | Sheet member, absorbent article, interlabial pad, and method for manufacturing sheet member |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920823A (en) * | 1972-06-19 | 1974-02-23 | ||
| US3815602A (en) * | 1969-12-31 | 1974-06-11 | Du Pont | Disposable diaper |
| JPS5266772A (en) * | 1975-11-21 | 1977-06-02 | Mitsubishi Rayon Co | Manufacture of unwoven fabric with a woven fabric appearance |
| JPS5314874A (en) * | 1976-07-28 | 1978-02-09 | Mitsubishi Rayon Co | Manufacture of unwoven fabric |
-
1978
- 1978-11-19 JP JP14248978A patent/JPS5568367A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3815602A (en) * | 1969-12-31 | 1974-06-11 | Du Pont | Disposable diaper |
| JPS4920823A (en) * | 1972-06-19 | 1974-02-23 | ||
| JPS5266772A (en) * | 1975-11-21 | 1977-06-02 | Mitsubishi Rayon Co | Manufacture of unwoven fabric with a woven fabric appearance |
| JPS5314874A (en) * | 1976-07-28 | 1978-02-09 | Mitsubishi Rayon Co | Manufacture of unwoven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5568367A (en) | 1980-05-23 |
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